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<TITLE>[Chapter 6] 6.3 Drawing Graphics</TITLE>
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<td width=171 align=center valign=top><B><FONT FACE="ARIEL,HELVETICA,HELV,SANSERIF" SIZE="-1">Chapter 6<br>Applets</FONT></B></TD>
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<h2 CLASS=sect1><A CLASS="TITLE" NAME="JNUT2-CH-6-SECT-3">6.3 Drawing Graphics</A></h2>

<P CLASS=para>
<A HREF="ch06_03.htm#JNUT2-CH-6-EX-2">Example 6.2</A>
shows a fancier version of our simple applet.
As you can see from
<A HREF="ch06_03.htm#JNUT2-CH-6-FIG-2">Figure 6.2</A> ,
we've made the graphical display more interesting. This
applet also does all of its drawing in the <tt CLASS=literal>paint()</tt>
method. It demonstrates the use of <tt CLASS=literal>Font</tt> and
<tt CLASS=literal>Color</tt> objects.

<P CLASS=para>
This example also introduces the <tt CLASS=literal>init()</tt> method,
which is used, typically in place of a constructor, to
perform any one-time initialization that is necessary when
the applet is first created. The <tt CLASS=literal>paint()</tt> method may
be invoked many times in the life of an applet, so this
example uses <tt CLASS=literal>init()</tt> to create the <tt CLASS=literal>Font</tt>
object that <tt CLASS=literal>paint()</tt> uses.

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<h4 CLASS=figure><A CLASS="TITLE" NAME="JNUT2-CH-6-FIG-2">Figure 6.2: A fancier applet</A></h4>


<p>
<img align=middle src="./figs/jn2_0602.gif" alt="[Graphic: Figure 6-2]" width=464 height=167 border=0>

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<h4 CLASS=example><A CLASS="TITLE" NAME="JNUT2-CH-6-EX-2">Example 6.2: An Applet with Fancier Graphics</A></h4>

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<P>
<PRE>
import java.applet.*;
import java.awt.*;
public class SecondApplet extends Applet {
  static final String message = "Hello World";
  private Font font;
  // One-time initialization for the applet
  // Note: no constructor defined.
  public void init() {
    font = new Font("Helvetica", Font.BOLD, 48);
  }
  // Draw the applet whenever necessary.  Do some fancy graphics.
  public void paint(Graphics g) {
    // The pink oval
    g.setColor(Color.pink);
    g.fillOval(10, 10, 330, 100);
    // The red outline. Java doesn't support wide lines, so we
    // try to simulate a 4-pixel wide line by drawing four ovals.
    g.setColor(Color.red);
    g.drawOval(10, 10, 330, 100);
    g.drawOval(9, 9, 332, 102);
    g.drawOval(8, 8, 334, 104);
    g.drawOval(7, 7, 336, 106);
    // The text
    g.setColor(Color.black);
    g.setFont(font);
    g.drawString(message, 40, 75);
  }
}
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